Printers block



(No Model.) I

G. W. HARBON. PRINTERS BLOCK.

No. 421,929. Patented Feb.25,1890.

UNITED STATES Parenti FFICE.

GEORGE IV. IIARBON, OF ENGLEWOOD, ILLINOIS.

PRINTERS BLOCK.

szfnornreATIoN To all whom, it may concern/.-

Beit known that I, GEORGE W. HARBON, residing at Englewood, in. the county of Cook and State ofl Illinois, and a citizen of the United States, have invented a new and useful Improvement in Printers Blocks, of which the following is a specification, refermce being had to the accompanying drawngs, in whichm Figure l is a plan. Fig. 2 is a section at inc 2 of Fig. l. Fig. 3 is a side view of one if the removable strips. Fig. -i is a detail, )eilig a section at line 4 of Fig. l. Fig. 5 is t detail, being a section at line 5 of Fig. l.

My invention relates to blocks adapted to receive different sizes of electrotype or other lplates used in printing; and it consists in providing the block with one or more removable strips which extend the whole length of the block, devices for holding the several parts of the block together, and slidin clamps to engage the edges of the plate on all sides, and in improving the construction of a portion of the sliding clamps, as illustrated in the drawings and hereinafter fully described. That which I claim. as new will be pointed out in the claim.

In the drawings, A B represent the two principal parts of the block.

a l) c cl are four removable strips, placed between the parts A B. Each of these strips is provided with two notches e (see Fig. 3) on its under side. The partA is provided with two 5holes, one of which f is shown in Fig. iutnd with two nuts, one of which g is shown.

G is a screw which passes through the part B; also through the'notches in the blocks a b c d and into the nut g.

C is another screw similar to C. By removing one or more of the strips a I) l c d the width of the block can be varied.

D are two sliding catches upon one side of the block A, which are adapted to be moved in the usual manner.

E is another sliding catch similar to the catches D and operated in the usual manner.

h is a sliding block.

lis a screw which passes through the block 7L.

j is a nut upon the lower end of the screw t'.

lt' is a plate secured to the part B. This plate 7c is provided with a slot l, through which the screw t' passes, and it has a dovetailed groove in its upper side, which receives a downward projection m from the block 7L. Such plate also has a similar groove in its under side to receive the nut j. The metal which forms each side wall of the slot is inclined a little from its outer end to its inner end. in Fig. et. The ,sliding block 7L, together with the screw t' and nutj, form in eiecta sliding clamp or catch, which can be adjusted in the slotZ and be held in any adjusted position by tightening the screw. By making the walls of the slot inclined, as shown, the sliding clamp, when secured in place by the tightening of the screw, will be held more iirmly in place than if the walls or" the slot were straight, the inclination of the walls having a tendency to prevent the backward movement ot' the clamp.

There is another sliding clamp F, connected with the piece B, the construction of which is the same as that of the sliding clamp already described. There is also another similar sliding clamp G on one end of the piece A.

0 is a piece of metal provided with a groove p to receive a comb for operating t-he slides D. There is a similar device on the upper end of the piece A.

Electrotype and other plates for printing of various sizes can readily be used with a single block, such as I have described, be-

able strips the width of the block can be materially changed and the sliding clamps E G can be adjusted to plates of different sizes. By means of the sliding clamps connected with the piece B, and the sliding clamp G in connection with the other three clamps D and E, which are in common use, the margins can. be greatly varied in books of different sizes, and the use of a large amount of furniture can be dispensed with.

The two blocks A B and the intermediate strips can all be clamped together by means One of these inclined pieces'nis shown cause by removing one or more of t-he remov-l of the screws C C', and either one or more of the intermediate strips can readily be removed by loosening these screws.

l/Vhat I claim as new, and desire to secure by Letters Patent, is as follows:

A receiving-block for plates of different sizes, consisting of two sections A B, one or more removable strips located between the sections A B, in Combination with screws C C, and adjustable slides or eatehes ou both 1o sides and on both ends ofthe blool ,si1bsta11 tially as and for the pui-poses speeied.

GEORGE NV. HARBON. \Vitnesses:

ALBERT H. ADAMS, HARRY T. J ONES.y

It is hereby certied inet the nenne of the petentee in Letters Patent No. 421,929 granted February 25, 1890'7 'for en improvement in Prnbers Blocks, Was erroneously Written and printed 4 Geerge W. Herben, Whereas said neme shpuld have been Written and printed George W. Harbor,- end that the said Letters Patent should be reed with Ithis correction therein that the saune may conform to the record of the ease in the .Patent Office.

Signed, eountersigned, and sealed finis 25th dey of March, A. D. 1890.

CYRUS BUSSEY, Assistant Secretary of the Interior.

[SEAL] C ountersigned G. E. MrronnLL Commissioner of Parents. 

